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Home >> Audi >> 2024 >> A7 Quattro Premium >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning (Heating, Ventilation And Air Conditioning) (Component Location) >> 87 Air Conditioning >> Refrigerant Circuit >> Check Valves In Refrigerant Circuit, Removing And Installing >> Check Valve In Refrigerant Line From Inner Heat EXCHANGER, Removing And Installing >> Installing

Check Valve In Refrigerant Line From Inner Heat EXCHANGER, Removing And Installing: Installing

Install in the reverse order of removal while noting the following:

-- Replace the O-rings -2-. Refer to REFRIGERANT CIRCUIT SEALS .

GWWA87-12627Courtesy of AUDI OF AMERICA, LLC

-- If equipped, check the alignment pins -6- on the refrigerant lines for damage and correct seating.

-- Install the check valve -D- on the refrigerant line -E- and install the bolt -A-.

GWWA87-12832Courtesy of AUDI OF AMERICA, LLC

-- Install the refrigerant line -C- on the check valve -D- and install the bolt -B- by hand all the way.

-- Check the refrigerant line -C- for correct routing.

-- Install the bolts -B-.

-- Check the routing after securing refrigerant lines. They must be inserted in their brackets and must not come into contact with other components.

-- Reinstall the removed components in the reverse order and reattach detached components.

-- Evacuate and fill the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .

-- Switch the ignition on.

-- Initiate the basic setting of the A/C system using the Thermal Management Control Module -J1024- and activate the electric valves using the routine Stop routine refrigerant circuit filling/flushing  in the Vehicle Diagnostic Tester.

-- Operate the A/C system after charging the refrigerant circuit. Refer to A/C SYSTEM, STARTING AFTER CHARGING REFRIGERANT CIRCUIT, VEHICLES WITH HIGH-VOLTAGE SYSTEM .